Clone of mbed rtos 2 for easy accessibility.
Fork of mbed-rtos by
rtos/Mutex.cpp
- Committer:
- Kojto
- Date:
- 2017-07-04
- Revision:
- 125:5713cbbdb706
- Parent:
- 123:58563e6cba1e
File content as of revision 125:5713cbbdb706:
/* mbed Microcontroller Library * Copyright (c) 2006-2012 ARM Limited * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include "rtos/Mutex.h" #include <string.h> #include "platform/mbed_error.h" namespace rtos { Mutex::Mutex() { #ifdef CMSIS_OS_RTX memset(_mutex_data, 0, sizeof(_mutex_data)); _osMutexDef.mutex = _mutex_data; #endif _osMutexId = osMutexCreate(&_osMutexDef); if (_osMutexId == NULL) { error("Error initializing the mutex object\n"); } } osStatus Mutex::lock(uint32_t millisec) { return osMutexWait(_osMutexId, millisec); } bool Mutex::trylock() { return (osMutexWait(_osMutexId, 0) == osOK); } osStatus Mutex::unlock() { return osMutexRelease(_osMutexId); } Mutex::~Mutex() { osMutexDelete(_osMutexId); } }